ToastEnabled 0: turning off Windows notifications so nothing pops up in a game
Short answer
UpdatedToastEnabled is the per-user switch for notification banners. Set to 0, apps can no longer show toasts on screen. In the registry it sets ToastEnabled to 0 under HKCU\Software\Microsoft\Windows\CurrentVersion\PushNotifications.
HKCUSoftware\
ToastEnabled10
What it does
ToastEnabled is the per-user switch for notification banners. Set to 0, apps can no longer show toasts on screen.
In the app the switch is called "Disable Notifications (Quiet OS)", described there as: Turns off toast notifications to prevent UI wakeups.
When it helps, and when it hurts
When it helps
- Banners that pull a fullscreen game out of focus or cover part of the screen.
When it hurts
- You miss everything: messages, calendar reminders and security warnings do not appear.
- Do Not Disturb in Windows 11 does the same job only while you play.
What it writes
Exactly what the switch changes, read from the app's source. Switching it off is what the app writes when you turn the tweak off again.
| Key and value | With the tweak | Switching it off |
|---|---|---|
| HKCUSoftware\ | 0 | 1 |
From the app's source (notifications_off.hpp), app 2.0.0, checked .
The same change by hand
You do not need the app for this one. These commands make the changes from the table above. Run them in a Command Prompt opened as administrator, and make a restore point first.
reg add "HKCU\Software\Microsoft\Windows\CurrentVersion\PushNotifications" /v "ToastEnabled" /t REG_DWORD /d 0 /freg add "HKCU\Software\Microsoft\Windows\CurrentVersion\PushNotifications" /v "ToastEnabled" /t REG_DWORD /d 1 /freg query "HKCU\Software\Microsoft\Windows\CurrentVersion\PushNotifications" /v "ToastEnabled"How to undo it
In the app: Yes
Switching it off sets a standard Windows value, which may not be exactly how you had it.
Switch the tweak off in Frozen Tweaks. It writes ToastEnabled back to 1.
Changing several settings at once? The app's Make a restore point button, on every plan, makes a Windows restore point before you start.
Verdict
Effective but total. Do Not Disturb with the 'when playing a game' rule is usually the better choice.
Questions
- What does the "Disable Notifications (Quiet OS)" tweak change in Windows?
- In the registry it sets ToastEnabled to 0 under HKCU\Software\Microsoft\Windows\CurrentVersion\PushNotifications.
- What is the standard value of ToastEnabled?
- Frozen Tweaks writes 1 when you switch the tweak off, which is the value it treats as the Windows standard. With the tweak on, ToastEnabled is 0.
- Is "Disable Notifications (Quiet OS)" safe to switch on?
- Effective but total. Do Not Disturb with the 'when playing a game' rule is usually the better choice. The main cost: You miss everything: messages, calendar reminders and security warnings do not appear.
- How do I undo it?
- Switch the tweak off in Frozen Tweaks. Switching it off sets a standard Windows value, which may not be exactly how you had it.
- Is "Disable Notifications (Quiet OS)" free in Frozen Tweaks?
- Yes. It is one of the free tweaks, with no time limit.
In the app
- Switch
- Disable Notifications (Quiet OS)
- Category
- Windows
- Plan
- Free
- Undo
- Yes
Related guides
- Windows 11 Gaming Optimization: What Still Works in 2026An honest audit of Windows 11 gaming tweaks: which settings still measurably help in 2026, which are placebo, and which quietly cost you security.8 min read
- How to Increase FPS on PC: The Complete 2026 GuideAn ordered method for raising FPS on Windows 11 in 2026: the four settings that matter most first, then the GPU driver, BIOS and latency tuning.11 min read
More tweak explainers
- Fullscreen optimization overridesGameDVR_FSEBehavior and GameDVR_FSEBehaviorMode under GameConfigStore are global switches that force fullscreen optimizations on or off for every game.2 min read
- Language feature auto-installWindows downloads optional language features, such as speech, handwriting and text to speech, on its own through a scheduled task.2 min read
- File Explorer thumbnailsFile Explorer builds a small preview picture for every image and video in a folder. What the tweak changes, when it helps, when it hurts and how to undo it.2 min read
Written by
Frost LIVEFounder of Frozen Tweaks, based in Hamburg, Germany. Publishes settings guides for competitive games on his YouTube channel, Frost LIVE.
In the app
- Category
- Windows
- Plan
- Free
- Undo
- Yes
Frozen Tweaks
Free for Windows 10 and 11
58 tweaks free, each with an undo switch. Never edits game files.
v2.0.0 · 6.4 MB · Windows 10 and 11, 64-bit · free account, no payment details
Or type frozentweaks.com on your PC.
The free Windows app for competitive games.
58 tweaks free, each with an undo switch. Never edits game files.
v2.0.0 · 6.4 MB · Windows 10 and 11, 64-bit · free account, no payment details
Frozen Tweaks runs on Windows. Send the link to your PC and download it there.
Or type frozentweaks.com on your PC.